linux-kernel - Re: [PATCH 1/2] remoteproc: use a flag to detect the presence of IOMMU

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Message-ID: <CAK=WgbY5GGngd57=EBp+8_4djzMb5gZSOq0aQ9=vcpm-E9YQww@mail.gmail.com>
Date:	Tue, 5 Aug 2014 10:05:13 +0300
From:	Ohad Ben-Cohen <ohad@...ery.com>
To:	Suman Anna <s-anna@...com>
Cc:	Dave Gerlach <d-gerlach@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	linux-arm <linux-arm-kernel@...ts.infradead.org>,
	Robert Tivy <rtivy@...com>
Subject: Re: [PATCH 1/2] remoteproc: use a flag to detect the presence of IOMMU

On Mon, Aug 4, 2014 at 6:48 PM, Suman Anna <s-anna@...com> wrote:
> On 08/04/2014 06:50 AM, Ohad Ben-Cohen wrote:
>> On Tue, Jul 29, 2014 at 7:10 PM, Suman Anna <s-anna@...com> wrote:
>>> We are trying to add a remoteproc driver for a small Cortex M3 called
>>> the WkupM3 used for suspend/resume management on TI AM335/AM437x SoCs.
>>> This processor does not have an MMU. Same is the case with another
>>> processor subsystem PRU-ICSS on AM335/AM437x. All these are platform
>>> devices, and the current iommu_present check will not scale for the same
>>> kernel image to support OMAP4/OMAP5 and AM335/AM437x.
>>
>> That's perfect, thanks. Can you please add this use case description
>> to the commit log?
>
> I kept the current description generic, but sure, I can add this
> specific usecase examples to the commit log. I will post the revised
> patches once rc1 is out.

Thanks!
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